Product Details
Product Overview
The 1492-J3 serves as a high-density, single-circuit IEC Feed-Through Terminal Block within the Allen-Bradley 1492 family. This 5mm wide component facilitates efficient point-to-point wiring on standard 35mm DIN rails. It supports a wide range of industrial wire gauges while maintaining a compact footprint to save cabinet space. We provide this unit as 100% Brand New original hardware, ensuring optimal conductivity and mechanical grip for your control system's electrical distribution.
Technical Specifications
The 1492-J3 utilizes a rugged screw-clamp design for reliable electrical termination:
| Parameter | Specification |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Circuit Type | Single Circuit Feed-Through |
| Wire Range (Solid/Stranded) | #30…12 AWG (0.5…2.5 $mm^2$) |
| Current Rating (UL/CSA) | 24 Amps |
| Voltage Rating (UL/CSA) | 600V AC/DC |
| Terminal Width | 5.1 mm (0.20 in.) |
| Mounting | 35mm DIN Rail |
| Tightening Torque | 0.4…0.8 Nm (3.5…7.1 lb-in) |
| Material | Polyamide 6.6 (UL 94-V0) |
Engineering Advantages
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Optimized Space Efficiency: The 5.1mm housing width allows for a high density of terminations per foot of DIN rail. This reduces the size of junction boxes and control cabinets in complex automation projects.
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Superior Vibration Resistance: The screw-clamp mechanism maintains a gas-tight connection that resists loosening from mechanical shock or thermal expansion. This ensures long-term signal integrity without the need for periodic retightening.
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Universal DIN Rail Compatibility: The snap-on foot design allows for rapid mounting on standard 35mm top-hat rails. This facilitates easy expansion or reconfiguration of the terminal bank.
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Side-Entry Bridge Support: The 1492-J3 supports center-jumping and side-bridging accessories. This enables engineers to distribute common power or neutral signals across multiple blocks quickly and neatly.
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High-Visibility Marking: The block features dedicated slots for snap-in markers. This allows for clear, professional-grade labeling of every circuit, which speeds up troubleshooting and maintenance.
Installation Guidelines
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DIN Rail Alignment: Position the 1492-J3 over the 35mm rail and press down firmly until the foot locks onto the rail edge.
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Wire Preparation: Strip approximately 10mm of insulation from the wire. Insert the conductor fully into the clamp cage to ensure the screw clamps onto the copper, not the insulation.
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Torque Application: Use a flat-head screwdriver to apply between 0.4 and 0.8 Nm of torque. Correct torque prevents wire damage while ensuring a permanent electrical bond.
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End Protection: Always install a 1492-EBJ3 end barrier at the end of a terminal block run to cover the exposed metal parts and prevent short circuits.
FAQs
Q: What is the maximum wire size the 1492-J3 can accommodate?
A: The 1492-J3 accepts wire sizes up to 12 AWG (2.5 $mm^2$). For larger gauges, consider the 1492-J4 or 1492-J6 modules.
Q: Can I use this terminal block for both DC and AC circuits?
A: Yes. The 1492-J3 handles both AC and DC voltages up to a maximum rating of 600V, making it suitable for motor control, PLC power distribution, and signal loops.
Q: Does the 1492-J3 require an end cap?
A: Yes. Because one side of the terminal block is "open" to expose the bus bar, you must install a 1492-EBJ3 end barrier at the end of the stack to ensure an IP20 safety rating.
Q: Is the material flame retardant?
A: Absolutely. The housing uses Polyamide 6.6, which carries a UL 94-V0 flame rating, the highest standard for self-extinguishing plastic in electrical components.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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